ventral margin
Lower edge or margin.
Used in 10 profiles
Results for “ventral margin”
Ichthyological terms, not general ones.
body depth
The vertical distance between the dorsal and ventral margins of the body measured at the base of the pectoral fin where it joins the body. In most icthyological works the greatest dimension, normally anterior to the dorsal fin, is taken but in some cases body depth is measured at the origin of pectoral, pelvic and first anal. Fins or fin bases are not included in the measurement, however.
Used in 85 profiles
principle caudal-fin rays
Fin rays forming the dorsal or ventral margins of the caudal fin, supported by the supported by the hypural and parahypural.
Used in 1 profile
cleithrum
Major bone of the pectoral girdle. Extends upward from the pectoral fin base and forms the rear margin of the branchial cavity. Articulates with the supracleithrum dorsally, the scapula and coracoid ventrally. Also known as proscapulum.
Used in 4 profiles